One #vscode feature that can be annoying or extremely useful, depending on your workflow, is that when you click on a file in your project, it is open in "preview mode". The file won't stay open and the tab will be reused to open any other file you click on unless you modify it.

I just discovered that you can either:

- double click on the file to open it persistently
- change the workbench.editor.enablePreview
parameter in the settings to disable preview altogether! (there are specific settings workbench.editor.enablePreviewFromQuickOpen and workbench.editor.enablePreviewFromCodeNavigation if you want to control preview mode only in specific cases)